ELECTRICAL CHARACTERISTICS V+ = 5V, V<" />
鍙冩暩(sh霉)璩囨枡
鍨嬭櫉(h脿o)锛� LTC1842CS8#TR
寤犲晢锛� Linear Technology
鏂囦欢闋�(y猫)鏁�(sh霉)锛� 6/12闋�(y猫)
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鎻忚堪锛� IC COMPARATOR DUAL ULT LP 8SOIC
妯�(bi膩o)婧�(zh菙n)鍖呰锛� 2,500
椤炲瀷锛� 甯堕浕澹撳熀婧�(zh菙n)
鍏冧欢鏁�(sh霉)锛� 2
杓稿嚭椤炲瀷锛� 闁嬭矾婕忔サ
闆诲 - 闆绘簮锛屽柈璺�/闆欒矾(±)锛� 2.5 V ~ 11 V锛�±1.25 V ~ 5.5 V
闆诲 - 杓稿叆鍋忕Щ锛堟渶灏忓€硷級锛� 10mV @ 5V
闆绘祦 - 闈滄厠(t脿i)锛堟渶澶у€硷級锛� 5.7µA
CMRR, PSRR锛堟(bi膩o)婧�(zh菙n)锛夛細 80dB CMRR锛�80dB PSRR
鍌宠几寤堕伈锛堟渶澶э級锛� 12µs
纾佹化锛� 50mV
宸ヤ綔婧害锛� 0°C ~ 70°C
灏佽/澶栨锛� 8-SOIC锛�0.154"锛�3.90mm 瀵級
瀹夎椤炲瀷锛� 琛ㄩ潰璨艰
鍖呰锛� 甯跺嵎 (TR)
3
LTC1841/LTC1842/LTC1843
ELECTRICAL CHARACTERISTICS V+ = 5V, V鈥� = 0V, T
A = 25掳C unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
tPD
Propagation Delay
COUT = 10pF, RPULL-UP = 100k Overdrive = 10mV
12
s
Overdrive = 100mV
4
s
ILEAK
Output Leakage Current
VOUT = 12V (Note 2)
q
1
100
nA
VOL
Output Low Voltage
IOUT = 1.8mA
q
V 鈥� + 0.4V
V
Reference (LTC1842/LTC1843)
VREF
Reference Voltage
No Load
25
掳C
1.174
1.182
1.190
V
0
掳C to 70掳C
q
1.170
1.194
V
鈥�40
掳C to 85掳C
q
1.164
1.200
V
VREF Load Regulation
ISOURCE = 1mA
q
13
mV
ISINK =10A
1.75
4
mV
q
6mV
en
Voltage Noise
100Hz to 100kHz
100
VRMS
V + = 3V, V 鈥� = 0V, TA = 25掳C unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Power Supply
V +
Supply Voltage Range
LTC1841
q
2.0
11
V
LTC1842/LTC1843
q
2.5
11
V
ICC
Supply Current
HYST = REF (Note 2)
q
3.5
5.5
A
Comparator
VOS
Comparator Input Offset Voltage
(Note 3)
q
卤3
卤10
mV
IIN
Input Leakage Current (IN +, IN 鈥�)IN + = IN 鈥� = 1.5V (LTC1841),
q
卤0.01
卤1nA
IN + = IN 鈥� = VREF (LTC1842/LTC1843)
VIN
Comparator Input Voltage Range
q
V 鈥�
V + 鈥� 1.3V
V
PSRR
Power Supply Rejection Ratio
V + = 2V to 11V (LTC 1841),
0.1
1
mV/V
V + = 2.5V to 11V (LTC1842/LTC1843)
CMRR
Common Mode Rejection Ratio
VCM = V 鈥� to (V + 鈥� 1.3V) LTC1841
q
0.1
1
mV/V
VHYST
Hysteresis Input Voltage Range
LTC1842/LTC1843
q
VREF 鈥� 50mV
VREF
V
tPD
Propagation Delay
COUT = 10pF, RPULL-UP = 100k Overdrive = 10mV
14
s
Overdrive = 100mV
5
s
ILEAK
Output Leakage Current
VOUT = 12V (Note 2)
q
1
100
nA
VOL
Output Low Voltage
IO = 0.8mA
q
V 鈥� + 0.4V
V
Reference (LTC1842/LTC1843)
VREF
Reference Voltage
No Load
25
掳C
1.174
1.182
1.190
V
0
掳C to 70掳C
q
1.170
1.194
V
鈥�40
掳C to 85掳C
q
1.164
1.200
V
VREF Load Regulation
ISOURCE = 1mA
q
26
mV
ISINK =10A
1.75
4
mV
q
6mV
en
Voltage Noise
100Hz to 100kHz
100
VRMS
The q denotes specifications which apply over the full operating
temperature range.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: IN + = IN 鈥� + 80mV, output is in high impedance state.
Note 3: VCM = 1/2(V + 鈥� V 鈥�) for LTC1841, VCM = VREF for LTC1842/
LTC1843.
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